Tie a fresh slice of lemon over the corn (painful area) and keep it all night.
Massage castor oil on the corns every morning and night before sleeping. Massage for 2-3 minutes so that the oil gets absorbed. In 3-4 weeks the corns will disappear.
Mash 1-2 cloves (laung) & garlic (lahsun) and tie over the corns. Keep overnight.